Compact binary system dynamics at the second post-Newtonian order: Analytical formula of the coordinate time for eccentric and circular orbits

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Table 2

Parameters of selected NS-WD binaries together with relative difference between companion mass values.

System	m₁ (M_⊙)	m₂ (M_⊙)	$\frac{\| m_{2} - {\bar{m}}_{2} \|}{m_{2}}$ $\frac{\left\|m_{2}-\bar{m}_{2}\right\|}{m_{2}}$	R₀ (R_⊙)	e₀	P (d)	Ref.
PSR J1141-6545	1.30	0.99 ± 0.00(2)	4 × 10⁻⁵	2.20	0.172	0.20	1
PSR B 1620-26	1.34	0.34 ± 0.00(4)	9 × 10⁻⁷	170.12	0.025	191.00	2
PSR J2234+0611	1.35	$0 . 30_{- 0.01}^{+ 0.02}$ $0.30_{-0.01}^{+0.02}$	3 × 10⁻⁶	51.40	0.129	32.00	3
PSR J1950+2414	1.50	$0 . 28_{- 0.00 (4)}^{+ 0.01}$ $0.28_{-0.00(4)}^{+0.01}$	4 × 10⁻⁶	43.21	0.08	22.00	4
PSR J0955-6150	1.71	0.25 ± 0.002	5 × 10⁻⁶	49.90	0.120	24.58	5

Notes. (1) Bailes et al. (2003); (2) Sigurdsson et al. (2003); (3) Stovall et al. (2019); (4) Zhu et al. (2019); (5) Serylak et al. (2022).

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